Build: Heavy musculature, thick-set neck and shoulders, low-slung body
Weight: 53-55 pounds (24-25kg.) within United Kingdom
Height: 11-14 inches
Coat: Short, smooth
Color: Red, fawn, brindle, pale yellow or washed-out red, or white, or any combination of these colors
Head: Thick, massive, short-faced, broad, with cheeks extending to sides of the eyes, skin on the skull and forehead falling in dense folds, muzzle short and pug, nose broad and black with large nostrils, upper lip pendent and lower jaw very undershot
Teeth: Large, strong
Eyes: Very round, far apart and very dark
Ears: Small and thin, folded back in the form of a rose
Tail: Short and carries low
Limbs: Stocky, set squarely
Feet: Moderate, compact, firmly set
Life span: Median 12 years